The sixth reprint of JoJolion Volume 11 in January 2023 changed the pages showing Josefumi to remove the birthmark. The same photo was also in Volume 12, which was updated as well. The digital monochrome and colored versions of the volumes also updated to include the changes.
[Thanks to Karmageddon for discovering this in his physical volume]
Prior to removing Josefumi’s birthmark, the older volumes were additionally updated to change Kyo Nijimura’s name to Kei Nijimura. The kanji is the same but can be read in both ways. Thus, Shueisha initially published the manga with the incorrect furigana spelling (which shows how the name should be read). Araki did not notice until Chapter 102 released in December 2020, where he announced the proper spelling.
Updates in volume reprints are rare. The first chapter of Phantom Blood had a typographical error when it was published, where “Nani o suru da” (何をするだァーッ) was written instead of “Nani o surun da” (何をするんだァーッ). This error was not fixed for 15 years until the 66th printing, and has since been replicated in other works such as All-Star Battle.
Chapter 253 (the 140th chapter of Stardust Crusaders) was also updated in 2008 as Shueisha asked Araki to redraw scenes depicting Noriaki Kakyoin and DIO fighting on top of a mosque. The mosque was replaced with a regular building.
JoJolion (ジョジョリオン) is the eighth part of JoJo’s Bizarre Adventure. It was serialized in Ultra Jump from May 19, 2011 to August 19, 2021. The story begins in 2011 and follows Josuke Higashikata. He is a young man afflicted by retrograde amnesia, searching to uncover his identity in Morioh Town. However, his digging pulls him and his adoptive family into the unfinished business between his previous life and an impending inhuman threat. Araki also won the Iwate Hometown Special Manga Award for Part 8 in late 2021.